| Company | Category | Area | Address | Web | Contact person | |
| EXTREME COOLING | plumbing/heating/air cond cont | Texas | 17327 GLENHEW RD, HUMBLE, Harris, Texas, 77396-1643, USA | - | - | Joe Lovrek |
| EXTREME CORPORATE COMM | Television Program Producers | Texas | 2401 W BELLFORT ST, HOUSTON, Harris, Texas, 77054-5003, USA | - | - | - |
| EXTREME COWBOY EXTREME COWGIRL | Ret Men's/boy's Clothing | California | 3208 CRAZY HORSE DR, SIMI VALLEY, Ventura, California, 93063-5726, USA | - | - | Justin Hyde |
